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    <title>RGraph: HTML5 canvas graph library - bi-polar chart</title>
    
    <meta name="keywords" content="rgraph html5 canvas example bipolar chart" />
    <meta name="description" content="RGraph: Bipolar chart example" />

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    <script src="../libraries/RGraph.bipolar.js"></script>
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        window.onload = function ()
        {
            var left  = [5,6,8,9,12,13,4,9];
            var right = [5,8,4,11,15,26,13,16];
           
            var bipolar1 = new RGraph.Bipolar('bipolar1', left, right);        
            bipolar1.Set('chart.colors', ['red']);
            bipolar1.Set('chart.labels', ['Barry', 'John', 'Fred', 'George', 'Rich', 'Larry', 'John', 'Mike']);
            bipolar1.Set('chart.title.left', '2007');
            bipolar1.Set('chart.title.right', '2008');
            bipolar1.Set('chart.title', 'Sales (tooltips, context, zoom)');
            
            if (!RGraph.isIE8()) {
                bipolar1.Set('chart.tooltips', ['Barry', 'John', 'Fred', 'George', 'Rich', 'Larry', 'John', 'Mike', 'Barry', 'John', 'Fred', 'George', 'Rich', 'Larry', 'John', 'Mike']);
                bipolar1.Set('chart.tooltips.effect', 'fade');
            }

            bipolar1.Set('chart.units.post', 'k');
            bipolar1.Set('chart.contextmenu', [['Zoom', RGraph.Zoom], ['Get PNG', RGraph.showPNG], null, ['Cancel', function () {}]]);
            bipolar1.Set('chart.xmax', 35);
            bipolar1.Set('chart.shadow', true);
            bipolar1.Set('chart.shadow.color', '#aaa');
            bipolar1.Set('chart.shadow.blur', 3);
            
            RGraph.Clear(bipolar1.canvas, 'white');

            bipolar1.Draw();



            var bipolar2 = new RGraph.Bipolar('bipolar2', left, right);
            bipolar2.Set('chart.labels', ['Fezza', 'Porka', 'CRX', 'RX8', 'DB9', 'Aston', 'F430', 'BMX']);
            bipolar2.Set('chart.title.left', 'July')
            bipolar2.Set('chart.title.right', 'August');
            bipolar2.Set('chart.title', 'Vehicles (context, annotatable)');
            bipolar2.Set('chart.contextmenu', [['Show palette', function (e) {RGraph.Showpalette(e)}], ['Clear', function () {RGraph.Clear(bipolar2.canvas); bipolar2.Draw()}]]);
            bipolar2.Set('chart.units.post', 'k');
            bipolar2.Set('chart.annotatable', true);
            bipolar2.Draw();

            var bipolar3 = new RGraph.Bipolar('bipolar3', [1,2,3,4,5,6,7], [1,2,3,4,5,6,7]);

            var gradient = bipolar3.context.createLinearGradient(0,0,475,0);
            gradient.addColorStop(0,'red');
            gradient.addColorStop(0.5,'white');
            gradient.addColorStop(1,'red');

            bipolar3.Set('chart.labels', ['First', 'Second', 'Third', 'Fourth', 'Fifth', 'Sixth', 'Seventh']);
            bipolar3.Set('chart.title.left', '2007');
            bipolar3.Set('chart.title.right', '2008');
            bipolar3.Set('chart.title', 'A red chart (resizable)');
            bipolar3.Set('chart.colors', [gradient]);
            bipolar3.Set('chart.gutter', 30);
            bipolar3.Set('chart.resizable', true);
            
            if (!document.all) {
                bipolar3.Set('chart.zoom.mode', 'thumbnail');
            }

            bipolar3.Draw();

            var bipolar4 = new RGraph.Bipolar('bipolar4', [45,43,46,78,41,42,35], [31,21,25,26,26,26,12]);
            bipolar4.Set('chart.labels', ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']);
            bipolar4.Set('chart.title.left', 'January');
            bipolar4.Set('chart.title.right', 'February');
            bipolar4.Set('chart.title', 'A bi-polar chart');
            bipolar4.Set('chart.colors', ['#ff0']);
            bipolar4.Set('chart.gutter', 20);
            bipolar4.Draw();
        }
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    <a href="../index.html">RGraph: HTML5 canvas graph library</a>
    >
    <a href="./index.html">Examples</a>
    >
    Bi-polar chart
</div>


<h1>RGraph: HTML5 canvas graph library - Bi-polar chart</h1>

    <script>
        if (RGraph.isIE8()) {
            document.write('<div style="background-color: #fee; border: 2px dashed red; padding: 5px"><b>Important</b><br /><br /> Internet Explorer 8 does not natively support the HTML5 canvas tag, so if you want to see the graphs, you can either:<ul><li>Install <a href="http://code.google.com/chrome/chromeframe/">Google Chrome Frame</a></li><li>Use ExCanvas. This is provided in the RGraph Archive.</li><li>Use another browser entirely. Your choices are Firefox 3.5+, Chrome 2+, Safari 4+ or Opera 10.5+. </li></ul> <b>Note:</b> Internet Explorer 9 fully supports the canvas tag. Click <a href="http://groups.google.com/group/rgraph/browse_thread/thread/c5651ff8c56b8f3c#" target="_blank">here</a> to see some screenshots.</div>');
        }
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    <div>
        <p>
            The Bi-polar chart is also (possibly more commonly) known as an age-frequency chart or a population pyramid. It allows you to very straight forwardly
            compare two sets of data. For example two years worth of sales figues. Using this type of chart abnormalities will become
            apparent. Other charts that would also be comparable, include a grouped bar chart, a stacked bar chart, and a multiple
            line graph.
        </p>

        <div>
            <ul>
                <li><a href="../docs/bipolar.html">Bi-polar chart API documentation</a></li>
            </ul>
        </div>
        
        <div style="width: 950px">
            <div style="width: 450px; float: left">
                <canvas id="bipolar1" width="475" height="250">[No canvas support]</canvas>
                <canvas id="bipolar2" width="475" height="250">[No canvas support]</canvas>
            </div>
            
            <div style="width: 450px; float: right">
                <canvas id="bipolar3" width="475" height="250">[No canvas support]</canvas>
                <canvas id="bipolar4" width="475" height="250">[No canvas support]</canvas>
            </div>
        </div>
    </div>

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